mitt romney is spending the weekend cramming for the debate. some political analysts say he needs a strong showing and they show him losing ground to the president in various battleground states. university of denver is preparing to host the debate. it will focus on the debate and be hosted by jim lehreresidents. >> they will have two more presidential debates on the 16th and two #. can you watch them live right here and coverage of wednesday night's debate begins at 6:00. >> a new survey shows it as mathematical dead heat in highway. 49% for president obama and 45%. the gap is is within the poll's margin of error and 2% of likely voter it is say they are still undecided. while the election is on tuesday. some voters have already cast their ballots. they offer some form of early voting. iowa began next week and then tuesday. volunteers from the obama and romney camps are looking for the early votes. it is an important strategy. it allows the party to bank votes more than a day. >> vice-presidential will be on the campaign trail. we will find ou